Check for interrupts and stack overflow in TParserGet().
TParserGet() recurses for some token types, meaning it's possible
to drive it to stack overflow. Since this is a minority behavior,
I chose to add the check_stack_depth() call to the two places that
recurse rather than doing it during every single call.
While at it, add CHECK_FOR_INTERRUPTS(), because this can run
unpleasantly long for long inputs.
Per bug #17995 from Zuming Jiang. This is old, so back-patch
to all supported branches.
Discussion: https://postgr.es/m/17995-9f20ff3e6389db4c@postgresql.org
Branch
------
REL_13_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/b6ab18a990ffd0daa55665e3153bfed9db547fa7
Modified Files
--------------
src/backend/tsearch/wparser_def.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
